Season
Episode
- Episode 1: Civil War Submarine / Red Cloud's Peace Pipe / Thomas Edison's House
- Episode 2: Early Monopoly / Internment Artwork / Lewis and Clark Cane
- Episode 3: Anti-Slavery Flag / Mail Order Brides / WWII Landing Craft
- Episode 4: First Movie Studio / Hollywood: Warner's Lighter / King Kong Camera
- Episode 5: Dueling Pistols / Little Big Horn Bayonet / Nesbit Portrait
- Episode 6: Home of Lincoln Assassination Plot / Preston Brooks' Riding Crop / Revolutionary War Cannon
- Episode 7: Chinese Poem / Ventriloquist's Dummy / Witch's House
- Episode 8: Bonnie & Clyde Bullets / George Washington Portrait / Revolutionary War Poem
- Episode 9: Lost Gold Ship / John Hunt Morgan Saddle / Cesar Chavez Banner
- Episode 10: Continental Army Muster Roll / Pop Lloyd Baseball Stadium / Pretty Boy Floyd's Gun
- Episode 11: Charlie Parker's Saxophone / Koranic School Book / Prison Plaque
- Episode 12: Body in the Basement / Newport U-Boat / Shippen Golf Club
History Detectives Season 2 Bonnie & Clyde Bullets / George Washington Portrait / Revolutionary War Poem
A group of researchers help people to find answers to various historical questions they have, usually centering around a family heirloom, an old house or other historic object or structure. It devotes itself "to exploring the complexities of historical mysteries, searching out the facts, myths and conundrums that connect local folklore, family legends and interesting objects."
